Does anyone know where this is stored? I want to make a custom logo, but I'd like to see how Keyshot does theirs... is it an animated gif, a series of images, something else?
Look for ks_logo.png - it's an 80px x 80 px file in ...Keyshot/Animations/[YourVRname]/[YourVRname]/files. You can overwrite it with your own image.
and what is about this default option?